We always aim to provide the best water filtration and purification products for our clients. and work hard to retain our reputation as the number one resource for personal. professional. world class service providers. Our products are well known for our focus on the clients and the quality we provide to the users and it has become one of the most trusted names. FeaturesNSF Carbon Block Filter 2.5″ OD x 9.87″ Length. 0.5 MicronThis carbon block filter is certified by the National Sanitation Foundation (NSF) Standard 42 for material requirements onlySuitable for use in water dispensing applications where higher chlorine levels are presentWater filters remove undesirable particles. chemicals. and microorganisms from water by means of a semipermeable barrier. adsorption. or biological processesThey are made of densely packed synthetic or natural fibers that trap suspended particles. materials that block microbes or adsorb unwanted chemicals. or substances that cause a chemical change. such as acid neutralizationFor most residential. commercial. and industrial applications. water filters are manufactured in the form of replaceable cartridges that fit inside permanent housingsHydronix Water Technology is a supplier of water filtration. purification and separation products